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Abstract #0147

3D Visualization of Quantitative T 2 Relaxation Times in the Femoral Condylar Cartilage in Healthy and ACL-injured Individuals

Uchechukwuka D Monu 1,2 , Emily J McWalter 2 , Caroline D Jordan 2,3 , Brian A Hargreaves 1,2 , and Garry E Gold 2,3

1 Electrical Engineering, Stanford University, Stanford, California, United States, 2 Radiology, Stanford University, Stanford, California, United States, 3 Bioengineering, Stanford University, Stanford, California, United States

Osteoarthritis is a degenerative joint disease that may affect more than half of the ACL-injured population. Current MRI osteoarthritis studies often evaluate just a single slice from the medial and lateral compartments of the full knee, which may not fully describe the cartilage volume variation or longitudinal changes. In this work, we provide a method of visualizing quantitative maps of the entire cartilage surface using projection maps. T2 relaxation time differences between healthy volunteers and ACL-injured subjects are clear and the global percent short term CV of the implemented technique is comparable to the ROI approach reported in literature.

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